A Field Guide for Ground Checking Southern Pine Beetle Spots

Southern Pine Beetle Handbook

Glossary

Southern pine beetles– Dendroctonus frontalis, a bark beetle identified by the S-shaped galleries it makes beneath the bark of attacked.

Spot- A group of dead or dying trees infested by the southern pine beetle.

Spot growth- the natural expansion of untreated spots as additional live trees on the outer edge of a spot become infested.

Stage 1 pine– Infested pine showing symptoms of fresh attacks by SPB.

Stage 2 pine– Infested pine with developing broods (larvae, pupae, or new adults) of SPB.

Stage 3 pine– Pine killed by SPB from which all broods have emerged.

Active spot- SPB infestation in which one or more of the attacked trees contain beetles or brood.

Inactive Spot– SPB infestation in which the beetles in all of the attacked trees have completed development and emerged.

Active head of spot – That portion of a SPB spot containing beetles in the process of attacking live trees.

Buffer strip– A group of live uninfested pines, adjacent to the most recently infested trees in a spot, that is felled to assure effective control.

Ips beetles– A group of related pine-killing beetles that can be distinguished from SPB by the unfilled Y- or H-shaped galleries made by attacking parent beetles.

Black Turpentine Beetle– Dendroctonus terebrans, a large bark beetle commonly found attacking the lower trunks of pines, producing large reddish pitch tubes.

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